The motor can be positive or negative. When the running direction is inconsistent with the expectation, the direction can be changed by adjusting the line sequence. Adjusting the potentiometer knob changes the governor output duty cycle, the motor speed changes, or the LED brightness changes.

 

 

    The input of the DC motor governor is DC, and it is not directly connected to AC (for example: household 220V AC), otherwise it will burn out! Do not reverse the positive and negative terminals of the DC power supply, otherwise the governor may be damaged.